Most listings are in the $10's per square foot per year. The Mount Clemens submarket is seeing a a rise in rates. In the last 3 months, the median rate increased $4 per sqft per year. That's a 27% increase in rent.
Compared to the rest of the Metro Detroit market, the Mount Clemens submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 16 listings have been posted online, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 750 sqft. Most buildings in this market are around 2 floors. Most buildings in this region were built in 0 and are Class Class B.